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Diffstat (limited to 'REORG.TODO/rt/tst-aio64.c')
| -rw-r--r-- | REORG.TODO/rt/tst-aio64.c | 290 |
1 files changed, 290 insertions, 0 deletions
diff --git a/REORG.TODO/rt/tst-aio64.c b/REORG.TODO/rt/tst-aio64.c new file mode 100644 index 0000000000..c05aa48238 --- /dev/null +++ b/REORG.TODO/rt/tst-aio64.c @@ -0,0 +1,290 @@ +/* Tests for 64bit AIO in librt. + Copyright (C) 1998-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#define _LARGEFILE_SOURCE 1 +#include <aio.h> +#include <errno.h> +#include <error.h> +#include <fcntl.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <sys/stat.h> + + +/* Prototype for our test function. */ +extern void do_prepare (int argc, char *argv[]); +extern int do_test (int argc, char *argv[]); + +/* We have a preparation function. */ +#define PREPARE do_prepare + +/* We might need a bit longer timeout. */ +#define TIMEOUT 20 /* sec */ + +/* This defines the `main' function and some more. */ +#include <test-skeleton.c> + + +/* These are for the temporary file we generate. */ +char *name; +int fd; + +void +do_prepare (int argc, char *argv[]) +{ + size_t name_len; + + name_len = strlen (test_dir); + name = xmalloc (name_len + sizeof ("/aioXXXXXX")); + mempcpy (mempcpy (name, test_dir, name_len), + "/aioXXXXXX", sizeof ("/aioXXXXXX")); + + /* Open our test file. */ + fd = mkstemp (name); + if (fd == -1) + error (EXIT_FAILURE, errno, "cannot open test file `%s'", name); + add_temp_file (name); +} + + +static int +test_file (const void *buf, size_t size, int fd, const char *msg) +{ + struct stat st; + char tmp[size]; + + errno = 0; + if (fstat (fd, &st) < 0) + { + error (0, errno, "%s: failed stat", msg); + return 1; + } + + if (st.st_size != (off_t) size) + { + error (0, errno, "%s: wrong size: %lu, should be %lu", + msg, (unsigned long int) st.st_size, (unsigned long int) size); + return 1; + } + + if (pread (fd, tmp, size, 0) != (ssize_t) size) + { + error (0, errno, "%s: failed pread", msg); + return 1; + } + + if (memcmp (buf, tmp, size) != 0) + { + error (0, errno, "%s: failed comparison", msg); + return 1; + } + + printf ("%s test ok\n", msg); + + return 0; +} + + +static int +do_wait (struct aiocb64 **cbp, size_t nent, int allowed_err) +{ + int go_on; + size_t cnt; + int result = 0; + + do + { + aio_suspend64 ((const struct aiocb64 *const *) cbp, nent, NULL); + go_on = 0; + for (cnt = 0; cnt < nent; ++cnt) + if (cbp[cnt] != NULL) + { + if (aio_error64 (cbp[cnt]) == EINPROGRESS) + go_on = 1; + else + { + if (aio_return64 (cbp[cnt]) == -1 + && (allowed_err == 0 + || aio_error64 (cbp[cnt]) != allowed_err)) + { + error (0, aio_error64 (cbp[cnt]), "Operation failed\n"); + result = 1; + } + cbp[cnt] = NULL; + } + } + } + while (go_on); + + return result; +} + + +int +do_test (int argc, char *argv[]) +{ + struct aiocb64 cbs[10]; + struct aiocb64 cbs_fsync; + struct aiocb64 *cbp[10]; + struct aiocb64 *cbp_fsync[1]; + char buf[1000]; + size_t cnt; + int result = 0; + + /* Preparation. */ + for (cnt = 0; cnt < 10; ++cnt) + { + cbs[cnt].aio_fildes = fd; + cbs[cnt].aio_reqprio = 0; + cbs[cnt].aio_buf = memset (&buf[cnt * 100], '0' + cnt, 100); + cbs[cnt].aio_nbytes = 100; + cbs[cnt].aio_offset = cnt * 100; + cbs[cnt].aio_sigevent.sigev_notify = SIGEV_NONE; + + cbp[cnt] = &cbs[cnt]; + } + + /* First a simple test. */ + for (cnt = 10; cnt > 0; ) + if (aio_write64 (cbp[--cnt]) < 0 && errno == ENOSYS) + { + error (0, 0, "no aio support in this configuration"); + return 0; + } + /* Wait 'til the results are there. */ + result |= do_wait (cbp, 10, 0); + /* Test this. */ + result |= test_file (buf, sizeof (buf), fd, "aio_write"); + + /* Read now as we've written it. */ + memset (buf, '\0', sizeof (buf)); + /* Issue the commands. */ + for (cnt = 10; cnt > 0; ) + { + --cnt; + cbp[cnt] = &cbs[cnt]; + aio_read64 (cbp[cnt]); + } + /* Wait 'til the results are there. */ + result |= do_wait (cbp, 10, 0); + /* Test this. */ + for (cnt = 0; cnt < 1000; ++cnt) + if (buf[cnt] != '0' + (cnt / 100)) + { + result = 1; + error (0, 0, "comparison failed for aio_read test"); + break; + } + + if (cnt == 1000) + puts ("aio_read test ok"); + + /* Remove the test file contents. */ + if (ftruncate64 (fd, 0) < 0) + { + error (0, errno, "ftruncate failed\n"); + result = 1; + } + + /* Test lio_listio. */ + for (cnt = 0; cnt < 10; ++cnt) + { + cbs[cnt].aio_lio_opcode = LIO_WRITE; + cbp[cnt] = &cbs[cnt]; + } + /* Issue the command. */ + lio_listio64 (LIO_WAIT, cbp, 10, NULL); + /* ...and immediately test it since we started it in wait mode. */ + result |= test_file (buf, sizeof (buf), fd, "lio_listio (write)"); + + /* Test aio_fsync. */ + cbs_fsync.aio_fildes = fd; + cbs_fsync.aio_sigevent.sigev_notify = SIGEV_NONE; + cbp_fsync[0] = &cbs_fsync; + + /* Remove the test file contents first. */ + if (ftruncate64 (fd, 0) < 0) + { + error (0, errno, "ftruncate failed\n"); + result = 1; + } + + /* Write again. */ + for (cnt = 10; cnt > 0; ) + aio_write64 (cbp[--cnt]); + + if (aio_fsync64 (O_SYNC, &cbs_fsync) < 0) + { + error (0, errno, "aio_fsync failed\n"); + result = 1; + } + result |= do_wait (cbp_fsync, 1, 0); + + /* ...and test since all data should be on disk now. */ + result |= test_file (buf, sizeof (buf), fd, "aio_fsync (aio_write)"); + + /* Test aio_cancel. */ + /* Remove the test file contents first. */ + if (ftruncate64 (fd, 0) < 0) + { + error (0, errno, "ftruncate failed\n"); + result = 1; + } + + /* Write again. */ + for (cnt = 10; cnt > 0; ) + aio_write64 (cbp[--cnt]); + + /* Cancel all requests. */ + if (aio_cancel64 (fd, NULL) == -1) + printf ("aio_cancel64 (fd, NULL) cannot cancel anything\n"); + + result |= do_wait (cbp, 10, ECANCELED); + + /* Another test for aio_cancel. */ + /* Remove the test file contents first. */ + if (ftruncate64 (fd, 0) < 0) + { + error (0, errno, "ftruncate failed\n"); + result = 1; + } + + /* Write again. */ + for (cnt = 10; cnt > 0; ) + { + --cnt; + cbp[cnt] = &cbs[cnt]; + aio_write64 (cbp[cnt]); + } + puts ("finished3"); + + /* Cancel all requests. */ + for (cnt = 10; cnt > 0; ) + if (aio_cancel64 (fd, cbp[--cnt]) == -1) + /* This is not an error. The request can simply be finished. */ + printf ("aio_cancel64 (fd, cbp[%Zd]) cannot be canceled\n", cnt); + puts ("finished2"); + + result |= do_wait (cbp, 10, ECANCELED); + + puts ("finished"); + + return result; +} |